@krisdages/aurelia-bootstrap/src/typeahead/typeahead-highlight.js

Bootstrap components written in Aurelia.

export class TypeaheadHighlightValueConverter {

    toView(value, filter){

        if(!filter){
            return value;
        }

        let result = '';
        let position = 0;

        while(true){
            let index = value.toLowerCase().indexOf(filter.toLowerCase(), position);

            if(index == -1){
                result += value.substring(position);
                return result;
            }

            result += value.substring(position, index) + `<strong>${value.substr(index, filter.length)}</strong>`;

            position = index + filter.length;

            if(position >= value.length){
                return result;
            }
        }

    }
}